Encyclopedia of training materials, zigbee protocol

用S7-200PLC的自由口模式和VB中的MSComm控件方便地实现了计算机与S7-200（CPU224）PLC的通讯。计算机作为主站,用户通过计算机可以方便地设置房间的控制指令并向PLC发出控制或监测命令， PLC作为从站来响应计算机发送的指令并采取相应的动作并将房间的电、水、热信息发回到计算机。用户可以通过电脑屏幕实时地监视到房间的电、水、热信息并进行相应的处理。-with S7-200PLC the Free Port Mode and the VB MSComm to realize a trap Computer and S7-200 (CPU224) PLC communications. Computer as a master station, Computer users can easily set up control rooms PLC issued directives to control or monitoring orders, PLC as from the station to respond to orders sent by the computer and take corresponding action will be room for electricity, water, Heat fat information to the computer. The user can screen real-time surveillance of the room electricity, water and heat information and handled accordingly.

这个也是关于空间谱的matlab 挺好的 可以-This is on the spatial spectrum of matlab can be quite good

RS232的串行通讯源代码~~~~~~~~~~~~，完成各种类型的串行通讯。-RS232 serial communication ~~~~~~~~~~~~, complete source code of all types of serial communications.

应用背景我们提出了分散认知的协议允许二级用户自主搜索频谱没有中央协调员或专门的机会通信信道。硬件和能量约束，我们假设一个二级用户可能无法执行全频谱感知或可能不愿意监控没有数据传输时的频谱。我们发展基于机会频谱接入的分析框架部分可观测马尔可夫决策理论的研究（POMDP）。这一决策理论方法集成了设计频谱接入协议的频谱接入协议确定的物理层和交通统计由原网络应用层。它也允许频谱感知误差和约束容易合并与主要用户的碰撞概率。在此POMDP框架，我们提出了认知MAC协议优化二次用户的性能，同时限制主用户的干扰。次优策略与减少的复杂性，但可比性能的发展。无需附加控制信息交换次级发射机和接收机，建议分散协议确保在频谱之间的同步跳频在碰撞和碰撞的存在下，发射器和接收器频谱感知误差。关键技术本文提出了一种分散的方法Ad hoc网络MAC OSA。一种新的特征这项工作是剥削的机会，在插槽水平，允许低利率应用（如传感器节点）与主要用户。POMDP框架使一个机会用户使最优基于信念向量的感知和访问决策总结了基于网络状态的知识对所有过去的决定和意见

如何做一个RPG游戏

delphi入门基本程序,包括OPC的通用协议,在这个基础上进行各个厂家的设备的数据采集-basic entry procedures, including the OPC common agreement on the basis for all manufacturers of the equipment data acquisition

中国移动通信CMPP3.0短消息网关开发接口样例,很实用的,给开发短信平台的朋友-CMPP3.0 China Mobile Communications Development of Short Message Gateway Interface example, a very practical, SMS platform for the development of a friend

一个会商程序，支持白板、文字、语音 界面是基于BCGControlBarPro 语音是基于OPENH323-a status conference procedures, support whiteboard, text, voice interface is based on BCGControlBarPro voice is OPENH323

This packet is a IS-95 baseband simulation for 1 data channel of 9.6 KBps rate. The simulation is written for static channel and AWGN noise. The packet include: 1) Packet Builder (Viterbi Encoding, Interleaver, PN generation) 2) Modulator (RRC filter) 3) Demodulator (Matched Filter, RAKE receiver) 4) Receiver (HD or SD) (Deinterleaver, Viterbi Decoder). You should run "Simulation.m" function that include all modules.

GSM 07.05通讯标准-GSM 07.05 communications standards